Sliding Bearing PV Tester

Criterios

This machine is mainly applicable to GB 7948-1987 plastic bearing limit PV test method, JB/T 7381-2010 powder metallurgy oil bearing PV value determination method and other standards, used for the determination of plastic-based, iron-based, and other substrate powder metallurgy oil bearings and other sliding bearings limit performance.

Main technical indexes

1、Test force (radial) loading range: 0-15000N.

2. force value accuracy error: ≤ ± 1%.

3. spindle speed: 0-2000r/min, stepless speed regulation.

4、Maximum speed error:±2r/min.

5、Measuring range of friction torque:0-50Nm.

6、Relative error of torque display value:≤±2%.

7、Temperature measurement range:room temperature-300℃; and

8. spindle taper: 1:7; friction sub-diameter: 35mm; standard specimen size: 39mm (outer diameter) * 35mm inner diameter * 35mm length

9. the test time control range: 0-999999S arbitrary settings.

10、Radial runout of spindle: ≤±0.01mm.

11、Test cycle control range: 1-999999r arbitrary setting;; and

12. control conditions: fixed speed variable load, set the test force, test time (or number of revolutions), test speed, loading interval time, loading gradient and other conditions, the test machine automatically control set the time, friction coefficient, friction temperature and other conditions of the shutdown, the automatic shutdown. The test process real-time display of the test force, friction torque, friction coefficient, number of revolutions, temperature, time and other parameters Automatic calculation of the test PV value, the amount of wear and other results of the data, and the output of the test report.

13. friction vice (steel bushing): 45 # steel quenched and tempered, hardness HRC40-45. or customized according to customer requirements.

14. the whole machine power: about 8.5KW.

15、Weight of main machine: about 800KG.

16、Main machine size: about 1200*600*1000;.

Working conditions:

(1)The tester works normally under the following conditions:

(2)Within the range of room temperature 10℃～35℃.

(3) In an environment where the relative humidity is not greater than 80%.

(4) no vibration around, no corrosive media and no strong electromagnetic interference in the environment;.

(5) The fluctuation range of power supply voltage should not exceed ±10% of the rated voltage, and the fluctuation of frequency should not exceed 2% of the rated frequency; and

(6) Correctly installed on a firm foundation with a levelness of 0.2/1000.